Amusement apparatus.



J. A. TERRY. AMUSEMENTAPPARATUS. APPLICATION FILED FEB. 20. 1911.

Patented Mar. 26,1918.

menses.

To all whom it may concern:

Be it known that I, James A. TERRY citizen of the United States ofAmerica, and resident of Pocahontas, Pocahontas county,

Iowa, have invented a new and useful Amusement Afipparatus, of which thefollowin is a speci cation.

he ob ect of this invention is to provide an improved construction foran amusement apparatus particularly adapted for use by children.

- A further object of this invention isto provide an improved amusementapparatus combining the characteristics of a seesaw or teeterin deviceand a merry-go-round or carouseh A further object of this invention isto provide im roved means in an amusement apparatus or effecting arotary movement through and because o a vertical oscillating movement.

My invention consists in the construction, arrangement and combinationof elements hereinafter set forth, pointed out in my claims andillustrated by the'accompanying drawing, in which I Figure 1 is anelevation of myimproved apparatus. Fig. 2 is a plan 0 the same. Fig. 3is a central vertical section of the same, transversely of the beam, onan enlarged scale. Fig. 4 is a cross-section showing the pivotalmountingof the rocking devices, on a further enlarged scale. Fig. 5 is across-section on the line 5-5 of Fig. 2, on

an enlarged scale. Fig. 6 is a cross-section on the line 66 of Fig. 2,on an enlarged scale. Fig. 7 is an end elevation of the beam and a seatthereon.

In the construction of the dance as shown the numeral 10 designates asupport such as a post 10, which may be formed of metal with a base 11adapted to be-seoured in any desired and suitable location. The sup ort10 also may be formed with a head or p ate 12 at its top. If desired,the post 1 0 ma be of wood, the "base 11 of concrete, in whic the 0st isset, and the plate 12 of metal suita ly secured to the top of the ost.

The plate 12 preferably iscircu ar and is formed with an integral,peripheral, upstanding track 13, the surface of said track bein in aconstantly changin plane, which may said to be abruptly un ulating,comprisin a series of elevations or upwardly curve members withintervening depressions. A pivot bolt or spindle 14 is mounted a: A. armor rocanomr, Iowa.

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fipeoifloation of Letters Iatent.

Application med February 30, 1917. -flerla11to. 149,804

Patented Mar. as, rare.

vertically centrally of and rigidly secured in the plate 12 and risessomewhat above the plane of the greatest elevation of the track 13. Ahub 15 is mounted for rotation on the spindle 14 and may also have a'sliht vertical movement thereon, the spindle e- "are indicated by thenumerals 19, 20. A frame 21 is fixed to the lower side and in the'central portion of the beam members 19, 2D and connects said members ri'dly, and said frame is formed with space downwardly projecting flanges22, 23, and are journaled on the trunnions 18. Thus the rocking beam isadapted for vertical oscillating movement, by articulation of theflanges 22, 23 on the trunnions 18, and for rotary movement througharticulation of the hub 15 on the spindle 1 1. Rollers 2 1, 25 are saidflanges.

journaled for rotation on horizontal axes,

longitudinally of the beam 19, 20 and are arranged .on opposite sides ofthe center thereof and spaced to correspond to the diameter of the track13, on which track said rollers are adapted to ride. The points orelevations of the track 13 are of an uneven number and equally spacedapart, whereby a point or elevation is diametricall op 0- site to adepression of said track. %y t is arrangement it is necessary that whenone of the rollers 24, 25 is on top of'one of the elevations of thetrack, the other of said rollers is in the bottom of a depression, andthe beam members 19, 20 therefore occupy an inclined position; and whensaid beam members are in horizontal position the rollers 24, 25 are inpositions of unstable equilibriumintermediate of the highest and lowestportions of the track. It will be apparent that because of theconstruction and arrangement above described, any movement of verticaloscillation of the beam will result'in a rotary movement, and any forcetending to cause a rotary movement will also result in a verticaloscillating move- I by a bolt 34 to the wedge A to . beam:

movement.

. -tionally-enga e'the clamp 33 thereb venting long itudinal movenientof merit, so that the device cannot be operated without a combinedrotary and oscillating I have provided a 'clampin late26 overlying thecentral portions 0 t e beams 19,

20 and clampin said beams to the frame 21 cs 28 embrace the beams 19, 20adjacent by means of olts 27. Other clamping at Ehe pomts where-saidbeams meet near their ends, and are secured by bolts 29.

The rocking beam formed as above described is rigid longitudmally, ascontradistinguished to a device made up of longitudinall arrangedsections pivoted together,

and osc' latesin a common transverse plane.

Seats 30, 31, which maybe formed of metal by bendmg and-pressing, or inany other suitable manner, aremounted on end portions of the beam formedby the membore 19, 20, and either or both of said seats may beadjustable longitudinally of the beam. In the accompanying 'drawm I haveshown a wedge member 32 secure to and projecting downwardly from thebattom of each seat 30, 31 and having its pomt or wedge resting betweenthe beam members 19, 20. A clamp 33 is pivoted atits ends member 32 anden- .c1rcles and embraces t e beams 19, 20, and said pivot is forwardlyof the longitudinal center of said wedge member and of the tween thebeams 19, 20, the pressure on the clam is released, and the seat may beadjuste longitudinally of the beam, such adjustment in a directiontoward the center of the device being limited by engagement with theclamps 28, and outwardly by plates'35,

Fig. 7) overlying and closing the ends of t e tubular beams 19, 20. Itis to be understood that any other'suitable means may be employed forsecuring the adjustment of either or both of the seats 30, 31, ifdesired, such as the useof set screws engaging the A strut'36 is fixedcentrally toand rises from-the frame 21 between the beam membars 19, 20,and a truss rod or wire 37' is provided and engages in its centralportion the u per end ofsaid strut. The truss member 3 extendslongitudinally of the beam and passes beneath the clamps 28 and beneaththe beam members adjacent said clamps, then extends outwardly beneathsaid beam members and through the end plates 35, being threaded onits'ends and secured by nuts 38 contacting with the outer faces of saidplates. Thus provision is made for strengthening, stifi'emng', bracingand reinforcing the beam, and for adjusting the tension of said trussingdevices.

The device makes an attractive playground apparatus which is com arativesafe and easily operated,-as a slig t swinging or teetering movement issufficient to start the rotary and oscillating movement, and the stateof unstable equilibrium by reason of the double 1pivoting and thestaggered abruptly undu ating-track causes the momentum to carr thebeams in their double movement wit .very little eifort. The device ma beadjusted to fpersons of varying sizes y adjustment 0 one or both of theseats so that the leverage on the opposite ends is approximately equal.

I claim as my invention-.

1. An amusement apparatuscomprising a support, an undulating trackthereon having diametrically opposed elevations and depressions, a hubmounted for rotation on said support, a beam pivoted on a horizontalaxis 1n said hub, and contact devices on said beam engaging said track.

2. An amusement apparatus, comprising a support, an undulating trackthereon hav-- ing diametricall opposed elevations and depressions, a humounted for rotation on said support,'a beam pivoted 'on a horizontalaxis in said hub, and'rollers on said beam engaging diametricallyopposite portions of said track.

3. An amusement apparatus, comprising a support, an undulating circulartrack thereon, a member mountedfor rotation on said support centrally ofsaid track, a beam pivoted on a horizontal axis to said rotarymember,said track being formed with oppositely staggered elevations and 'deressions, and rollers journaled on said and adapted to engagediametrically oppositepomts on said track. a

4. An amusement apparatus; comprising a support, an undulating circulartrack on em support, sald track being formedwith successive elevationsand depressions, each elevation being diametrically opposite to adepression, and a device mounted for rotation and pivoted at its centerfor vertical oscillation on-said support and provided with contactdevices engaging said track.

5. An amusement apparatus, comprising a support, an undulating track onsaid support, said track being formed with successive elevations anddepressions, and a device mounted for rotation and pivoted in its centerfor vertical oscillation on said su ort, said device being rigidlongitudina y and adapted for oscillation in a common transverse plane,sa d device being provided with contact devices engaging said track.

6. An amusement apparatus, comprising a support, an undulatingtrack onsaid suport, said track being of circular form and ormed with successiveelevations and depressions, each elevation being diametrically oppositeto a de ression, a member mounted for rotation on t e support centrallyof said track, a member mounted for oscillation verticall on said rotarymember, and contact devices on the osclllating member engagiligigdiametrically opposite points on'said trac 7. In an amusement apparatus,a beam formed of twin members lying side by side throughout a portion ofthe1r lengths, a seat formed with a downwardly pro ect1ng wedge memberbetween the twin beam members, and a clamp member embracing the twinbeam members and pivoted at its ends to said Wedge member, the pivotingof said clamp to said wedge being at one side of the longitudinalcenter-of said seat.

Signed by me at Pocahontas, Iowa, this 14th day of February, 1917.

' JAMES A. TERRY.

